Trying to export mesh and get this message can anyone help?

The Sims 4 Studio - Version 3.1.6.3
System.AggregateException: One or more errors occurred. ---> System.IO.DirectoryNotFoundException: Could not find a part of the path 'C:\[UserName]s\[UserName]\AppData\Roaming\Blender Foundation\Blender\2.70\scripts\addons'.
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.Directory.InternalCreateDirectory(String fullPath, String path, Object dirSecurityObj, Boolean checkHost)
at System.IO.Directory.InternalCreateDirectoryHelper(String path, Boolean checkHost)
at System.IO.Directory.CreateDirectory(String path)
at S4Studio.Blender.BlenderUtilities.InstallAddon()
at S4Studio.ViewModels.CAS.CASStandalone.<>c__DisplayClass74_0.<ExecuteExportMesh>b__0()
at System.Threading.Tasks.Task.InnerInvoke()
at System.Threading.Tasks.Task.Execute()
--- End of inner exception stack trace ---
---> (Inner Exception #0) System.IO.DirectoryNotFoundException: Could not find a part of the path 'C:\[UserName]s\[UserName]\AppData\Roaming\Blender Foundation\Blender\2.70\scripts\addons'.
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.Directory.InternalCreateDirectory(String fullPath, String path, Object dirSecurityObj, Boolean checkHost)
at System.IO.Directory.InternalCreateDirectoryHelper(String path, Boolean checkHost)
at System.IO.Directory.CreateDirectory(String path)
at S4Studio.Blender.BlenderUtilities.InstallAddon()
at S4Studio.ViewModels.CAS.CASStandalone.<>c__DisplayClass74_0.<ExecuteExportMesh>b__0()
at System.Threading.Tasks.Task.InnerInvoke()
at System.Threading.Tasks.Task.Execute()<---